Convert object to array of strings?

Question

I am writing in my save method but here am getting as a list of array. but wanted to convert to set of string.

   mySys: $scope.stringArrayToObjectArray($scope.editmySystems,"name");

$scope.editmySystems holds value-

 0 :f
  id: svg
  name:"JASSI"
 1 :f
  id: svg2
  name:"JASSYY" 

 length: 2

So for conversion i wrote one function-

   $scope.stringArrayToObjectArray = function(stringArray, fieldName)   {
    var objectArr = [];
    angular.forEach(stringArray, function(singleString) {

        objectArr[fieldName]=singleString.name;

    });
    return objectArr;
};

currently objectArr is returning as-

     name: "JASON2"

Expected o/p- objectArr should return-

     name: ["JASSI","JASSYY"]

Please suggest

What do you expect objectArr[fieldName]=singleString.name; to do? — zzzzBov
– zzzzBov, Commented Jun 6, 2016 at 21:19
@zzzzBov, while that is clearly the bug, I'm not sure if there is any reason to bring quite that tone to the discussion. Clearly he tried and put forth some effort in solving it. — Mike Perrenoud
– Mike Perrenoud, Commented Jun 6, 2016 at 21:21
@MikePerrenoud, please re-read that question as just a question without sarcasm or malintent. It was meant as a serious question of expectations. — zzzzBov
– zzzzBov, Commented Jun 7, 2016 at 0:58
@MikePerrenoud , zzzzBov - Sir, I will improve quality of question in coming days. I am pretty new to stack overflow. — saurav
– saurav, Commented Jun 7, 2016 at 5:16

Daniel · Accepted Answer · 2016-06-06 21:19:25Z

1

Basically you could just use:

var stringArray = [{id: 'svg', name: 'JASSI'}];
var objectArr = [];

stringArray.map(function(item) {
    objectArr.push(item.name);
});

console.log(objectArr);

answered Jun 6, 2016 at 21:19

Daniel

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Comments

micah · Accepted Answer · 2016-06-06 21:20:12Z

0

It's close but you're setting indexes on an array which will be an object. Instead, simply append the field name.

$scope.stringArrayToObjectArray = function(stringArray, fieldName)   {
    var objectArr = [];

    angular.forEach(stringArray, function(singleString) {
        objectArr.push(singleString[fieldName]);
    });

    return objectArr;
};

answered Jun 6, 2016 at 21:20

micah

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Comments

Nina Scholz · Accepted Answer · 2016-06-06 21:30:23Z

0

You could use Array#map and a callback which returns the wanted value of the key of the object.

The map() method creates a new array with the results of calling a provided function on every element in this array.

function getValues(array, key) {
    return array.map(function (a) {
        return a[key];
    });
}

var data = [{ id: 'svg', name: 'JASSI' }, { id: 'svg2', name: 'JASSYY' }];

console.log(getValues(data, 'name'));

edited Jun 6, 2016 at 21:30

answered Jun 6, 2016 at 21:23

Nina Scholz

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